Life Table Studies of the Cotton Bollworm, &lt;I&gt;Helicoverpa armigera&lt;/I&gt; (Hübner) (Lepidoptera: Noctuidae), on Different Host Plants

Liu, Zhudong; Dianmo, Li; Gong, Ping; Wu, Kunjun

doi:10.1603/0046-225x-33.6.1570

Cited by 233 publications

(167 citation statements)

References 17 publications

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“…The positive relationship between pupal weight and fecundity has been observed in other lepidopteran species (Awmack and Leather, 2002). Quality and quantity of consumed food have indirect effects on pest population dynamics by alterations of adult performance and total fecundity (Morgan et al, 2001;Liu et al, 2004). Since reared larvae of tomato looper on SUN 6108 f1 had the highest values of pupal weight, and life table parameters, it could be inferred the cultivar as suitable host for C. chalcites larvae.…”

Section: Discussionmentioning

confidence: 90%

“…It was observed that the net reproductive rate (R 0 ), the intrinsic rate of increase (r m ) and the finite rate of increase (λ) of C. chalcites decreased in the larvae fed on cultivar Calj.JN3. The r m and R 0 are the two key demographic parameters used to compare fitness of populations across diverse climatic and food-related conditions (Liu et al, 2004). It can be concluded that Calj.JN3 cultivar is a less suitable cultivar for C. chalcites than the other cultivars.…”

Section: Discussionmentioning

confidence: 99%

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Life table parameters and digestive enzyme activities in Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) fed on some commercial cultivars of tomato

Mardani-Talaee¹,

Zibaee²,

Rahimi³

2016

Acta Phytopathologica et Entomologica Hungarica

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Effects of six commercial tomato cultivars, Super Strain B, Super crystal, Hed rio grande, SUN 6108 f1, Rio grande UG and Cal.JN3 were determined on digestive physiology and life table parameters of Chrysodeixis chalcites (Esper). The highest values of consumed foods were determined in the larvae fed on Rio grande UG and Cal.JN3 while the lowest values were observed on SUN 6108 f1. Statistical difference was found in the pupal weight by the highest value on SUN 6108f1. The highest values of intrinsic rate of increase (r m ) and the net reproductive rate (R 0 ) were obtained on SUN 6108 f1 but the lowest values were obtained on Cal.JN3. Significant differences were also found in activities of digestive enzymes including specific proteases, α-amylase, glucosidases and TAG-lipase. Our findings showed that the highest and the lowest activities of specific proteases and TAG lipase were obtained on Rio grande UG and SUN 6108 f1, respectively. In addition, activities of the carbohydrases were the highest in the larvae fed on Cal.JN3. The demographical and physiological findings here revealed Cal.JN3 and Rio grande UG as the partially unsuitable cultivars for C. chalcites in comparison with other ones which may be recommended in integrated pest management. Keywords:Chrysodeixis chalcites, life table, digestive enzyme, tomato cultivar.Quality and quantity of host plants are described as presence of components affecting positively or negatively nutritional performance of herbivorous insects (Browne and Raubenheimer, 2003). These parameters depend on chemical compounds in host plants which are divided into four main groups including nitrogen-containing compounds, cyanogenic glycosides (glucosinolates), terpenoids and phenolics although some of them including alkaloids, phenolics, flavonoids and tannins are found occasionally in some families of plants (Schoonhoven et al., 1998). These chemicals, somehow defensive metabolites, are primarily toxic whereas others have anti-feedant and/or repellent properties leading to plant resistance against herbivorous insects. Host plant resistance occurs under three main mechanisms as antixenosis, antibiosis and tolerance by presence of secondary metabolites or morphological properties (Schoonhoven et al., 1998). Plants with antibiosis mechanisms may directly alleviate insect survival, size or weight, longevity and fecun-

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Life table parameters and digestive enzyme activities in Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) fed on some commercial cultivars of tomato

Mardani-Talaee¹,

Zibaee²,

Rahimi³

2016

Acta Phytopathologica et Entomologica Hungarica

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“…The growth and development of cotton bollworm larvae is affected by a variety of factors, including temperature, humidity, photoperiod and host plant (Jiang et al, 1998;Hunter & McNeil, 1997;Liu et al, 2004). There is a big difference in the duration of development of larvae reared on an artificial diet or a host plant.…”

Section: Discussionmentioning

confidence: 99%

“…There is a big difference in the duration of development of larvae reared on an artificial diet or a host plant. The developmental time of immature stages ranged from 26.6 d to 35.1 d on six different host plants, cotton, tomato, hot pepper, tobacco and common bean (Liu et al, 2004). H. armigera larvae reared on different artificial foods take longer to complete their development.…”

Section: Discussionmentioning

confidence: 99%

Expression of cytochrome P450 CYP6B6 in the different developmental stages of the insect Helicoverpa armigera (Lepidoptera: Noctuidae)

Zhang¹,

Yuan²,

Ding³

et al. 2013

Eur. J. Entomol.

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Abstract. In order to determine when during the development of H. armigera CYP6B6 is expressed, we measured the width of the head capsule, the length of the body and weight of the different life stages of the cotton bollworm reared under laboratory condition. The larvae took about 20 d to complete their development under these conditions, the pre-pupae about 4 d, pupae about 9 d, and the adults lived for about 9 d and the eggs took about 4 d to hatch. Knowing this it was possible to determine the pattern of cytochrome P450 CYP6B6 expression at different stages in the life cycle of H. armigera using real-time quantitative polymerase chain reaction (RT-qPCR). The CYP6B6 gene was expressed in all the developmental stages of the cotton bollworm. The results indicate that the level of expression was lower in the egg, pre-pupal, pupal and adult stages than in larvae. The level of expression of CYP6B6 decreased from the 1 st to the 3 rd instar larva, with the lowest level recorded in the 3 rd instar larvae and then increased reaching its highest value in 6 th instar larvae. A similar trend in the expression of CYP6B6 was detected using immunohistochemistry. As the results show, more efficient control of the cotton bollworm can be achieved if insecticides are applied when the larvae of H. armiger are in the 3 rd instar, because at that stage the eat little food and there is a low level of detoxifying enzymes in the larvae.

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“…Variation in adult body weight in insects is an outcome of several factors, among which the availability and quality of larval food are especially important (Thiery & Moreau, 2005;Torres-Vila et al, 2005;Liu et al, 2004). In some cases insects can compensate for poor nutrition during larval life by feeding as adults (Ryne et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Changes in the calling behaviour of female Spodoptera littoralis (Lepidoptera: Noctuidae) as a function of body weight and adult feeding

Sadek¹

2012

Eur. J. Entomol.

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Life Table Studies of the Cotton Bollworm, <I>Helicoverpa armigera</I> (Hübner) (Lepidoptera: Noctuidae), on Different Host Plants

Cited by 233 publications

References 17 publications

Life table parameters and digestive enzyme activities in Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) fed on some commercial cultivars of tomato

Life table parameters and digestive enzyme activities in Chrysodeixis chalcites (Esper) (Lepidoptera: Noctuidae) fed on some commercial cultivars of tomato

Expression of cytochrome P450 CYP6B6 in the different developmental stages of the insect Helicoverpa armigera (Lepidoptera: Noctuidae)

Changes in the calling behaviour of female Spodoptera littoralis (Lepidoptera: Noctuidae) as a function of body weight and adult feeding

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